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I ordered this coupler of months back for same 20$. I have waterpik too, but this one is very poorly designed. water keeps dripping all over and the water storage is not designed well. we may end up not using this. I tried multiple ways and the result is the same. if you give another 15 more dollars, you will get corded version. but it has many more features and it works nicely.

I ordered this coupler of months back for same 20$. I have waterpik too, but this one is very poorly designed. water keeps dripping all over and the water storage is not designed well. we may end up not using this. I tried multiple ways and the result is the same. if you give another 15 more dollars, you will get corded version. but it has many more features and it works nicely.